NS100 is a very compact & porwerful Personal GSM Tracker: it is designed to track for boat, through a very user-friendly internet interface, the person who bears it as a GSM telephone (3 registered tel numbers are assigned to the buttons plus a SOS number as well).
Can be used to better supervised the people having more risks of being in problematic situation (lonely outdoor sportmen, ...) or being ... lost (children, Alzheimer affected people).
When the person is on marine board a boat, yatch or any embarcation, we may track their evolutions in real time on the Internet, using Google Earth for instance.